640 



THE MONTHLY BULLETIN. 



black or brown. On an average a little less than thirty days is required 

 for the larvas to become full fed. During the time they are feeding 

 the leaves and fruit are attacked. Webs are spun and by means of 

 these, bunches of leaves and fruit are tied together. These turn brown 

 if the attack is severe and there is no chance for any fruit to mature. 

 Complete defoliation of trees by this pest is not at all uncommon where 

 nothing is done to check it. Fig. 357. 3, is from a photograph of a 

 full grown larva on a leaf. 



<«* 3(^..a^ 



Fig. 358. — The fruit-tree leaf-roller. 1, light-colored female moth; 2, 

 dark-colored male from same egg mass ; 3, light-colored female ; 4, dark- 

 colored female from the same egg mass as 3 ; 2, 4, 5 and 7 showing most 

 characteristic markings. (After Gillette and Weldon, Cir. 5, Colo. State 

 Ent.) 



